When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
Solve -2a - a = 7a - 3y + 6 for a in terms of y.
| \(\frac{5}{6}\)y - \(\frac{5}{6}\) | |
| \(\frac{2}{9}\)y - \(\frac{2}{3}\) | |
| -2y + 1 | |
| \(\frac{1}{2}\)y + \(\frac{5}{6}\) |